214302681 has 12 divisors (see below), whose sum is σ = 310471252. Its totient is φ = 142442496.

The previous prime is 214302643. The next prime is 214302701. The reversal of 214302681 is 186203412.

It can be written as a sum of positive squares in 2 ways, for example, as 140067225 + 74235456 = 11835^2 + 8616^2 .

It is not a de Polignac number, because 214302681 - 2⁶ = 214302617 is a prime.

It is a super-2 number, since 2×214302681² = 91851278167575522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214302481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32296 + ... + 38361.

Almost surely, 2^214302681 is an apocalyptic number.

It is an amenable number.

214302681 is a deficient number, since it is larger than the sum of its proper divisors (96168571).

214302681 is a wasteful number, since it uses less digits than its factorization.

214302681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71000 (or 70997 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 214302681 is about 14639.0806063769. The cubic root of 214302681 is about 598.4242737673.

The spelling of 214302681 in words is "two hundred fourteen million, three hundred two thousand, six hundred eighty-one".